The present invention provides a new method of treating and / or restore the intestinal inflammation induced by a combination with other treatments thereto or radiation therapy alone. For example, gastrointestinal malignancies, including the small intestine cancer colorectal cancer, appendix cancer, or anal cancer, this method genitourinary malignancies including penile cancer prostate cancer, bladder cancer, or testicular cancer cervical cancer, endometrial gynecological malignancies, including cancer of the vulva carcinoma, ovarian cancer, or vaginal cancer Alternatively, it is a method for the treatment of sarcoma malignancies osteogenic and other malignant tumors pelvic structures are involved, treatment which method comprises administering to a patient in need of treatment of radioactive induced enteritis the effective amount of balsalazide.本発明は、放射線療法単独かまたはそれと他の治療との組み合わせによって誘発された腸炎を回復させるかおよび/または処置する新たな方法を提供する。この方法は、例えば、結腸直腸癌、虫垂癌、肛門癌、または小腸癌を含む胃腸悪性腫瘍;前立腺癌、膀胱癌、精巣癌、または陰茎癌を含む泌尿生殖器悪性腫瘍;子宮頸癌、子宮内膜癌、卵巣癌、膣癌、または外陰部の癌を含む婦人科悪性腫瘍;あるいは、骨盤構造が関与する骨原性悪性腫瘍および他の肉腫性悪性腫瘍の処置のための方法であり、治療有効量のバルサラジドを放射性誘発性腸炎の処置が必要な患者に投与する工程を包含する。